80791705 has 8 divisors (see below), whose sum is σ = 102052800. Its totient is φ = 61231536.

The previous prime is 80791699. The next prime is 80791721. The reversal of 80791705 is 50719708.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 80791705 - 2⁷ = 80791577 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 425125 + ... + 425314.

It is an arithmetic number, because the mean of its divisors is an integer number (12756600).

Almost surely, 2^80791705 is an apocalyptic number.

It is an amenable number.

80791705 is a deficient number, since it is larger than the sum of its proper divisors (21261095).

80791705 is a wasteful number, since it uses less digits than its factorization.

80791705 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850463.

The product of its (nonzero) digits is 17640, while the sum is 37.

The square root of 80791705 is about 8988.4206065359. The cubic root of 80791705 is about 432.3036720164.

The spelling of 80791705 in words is "eighty million, seven hundred ninety-one thousand, seven hundred five".